import { InputDevice } from "./input-device";
import { Keyboard } from "./devices/keyboard";
import { Mouse } from "./devices/mouse";
/**
 * Input allows querying and accessing keyboard and mouse events from a global context. Input
 * is a singleton managed by the gfx runtime.
 */
export declare class Input extends InputDevice {
    private static readonly _instance;
    private readonly _keyboard;
    private readonly _mouse;
    private constructor();
    get keyboard(): Keyboard;
    get mouse(): Mouse;
    static get instance(): Input;
    static get keyboard(): Keyboard;
    static get mouse(): Mouse;
    setup(element: HTMLElement | null): void;
    pause(): void;
    resume(): void;
    update(): void;
}